Here is a preliminary design of the Frost faction that corresponds to the 8th iteration of the overall game design.

The Frost faction is a curious combination of a harsh, unforgiving environment (akin to the Barbarian desert) and gentle appreciation of it, even wonder. It makes heavy use of traditional frost spells and abilities like Freeze and Frostbite. It also invests considerably in changing the terrain to make it more frost-like. So even though many of its features are only effective in the frost environment, it should be able to create such an environment away from home.